Polypercon being despatched hence with an army to the city of Nora, defeated the undisciplined multitude which he encountered, and pursuing them within their fortifications compelled them to surrender the place. Into the king’s own hands there fell many inconsiderable towns, deserted by their inhabitants who had escaped in time with their arms and seized a rock called Aornis. A report was current that this stronghold had been in vain assaulted by Hercules, who had been compelled by an earthquake to raise the siege. The rock being on all sides steep and rugged, Alexander was at a loss how to proceed, when there came to him an elderly man familiar with the locality accompanied by two sons, offering, if Alexander would make it worth his while, to show him a way of access to the summit. Alexander agreed to give him eighty talents, and, keeping one of his sons as a hostage, sent him to make good his offer. Mullinus (Eumenês?), the king’s secretary, was put in command of the light-armed men, for these, as had been decided, were to climb to the summit by a detour, to prevent their being seen by the enemy. This rock does not, like most eminences, grow up to its towering top by gradual and easy acclivities, but rises up straight just like the _meta_, which from a wide base tapers off in ascending till it terminates in a sharp pinnacle.[238] The river Indus, here very deep and enclosed between rugged banks, washes its roots. In another quarter are swamps and craggy ravines; and only by filling up these could an assault upon the stronghold be rendered practicable. A wood which was contiguous the king directed to be cut down. The trees where they fell were stripped of their leaves and branches which would otherwise have proved an impediment to their transport. He himself threw in the first trunk, whereupon followed a loud cheer from the army, a token of its alacrity, no one refusing a labour to which the king was the first to put his hand. Within the seventh day they had filled up the hollows, and then the king directed the archers and the Agrianians to struggle up the steep ascent. He selected besides from his personal staff[239] thirty of the most active among the young men, whom he placed under the command of Charus and Alexander. The latter he reminded of the name which he bore in common with himself.